Water
Themes include well water, water quality, wastewater, watershed, storm water, drinking water.Popular datasets
Well Completion Reports
Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring
Surface Water - Fecal Indicator Bacteria Monitoring Results
Search Water datasets
502 datasets
DWR Technical Support Services (TSS)
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 2026
- File types: CSV
(Webpage Under Development) The Department of Water Resources (DWR) provides Technical Support Services (TSS) to assist Groundwater Sustainability ...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, June 3, 2026
- File types: PDF, CSV
Attention: Please note that the Freshwater Harmful Algal Bloom resources on the California Open Data Portal will not be updated from June 3 through Ju...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, June 3, 2026
- File types: CSV, PDF
Attention: Please note that the Safe to Swim map and its associated resources on California Open Data Portal will not be updated between June 3 to Jun...
Suisun Marsh Monitoring Program Channel Water Salinity Report
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 2026
- File types: PDF
Monthly salinity reports for the Suisun Marsh from October through May of each year....
SWAMP Data Dashboard
- Published by: California State Water Resources Control Board
- Last updated: Monday, June 1, 2026
- File types: PDF, CSV
Attention: Please note that the SWAMP Data Dashboard resources on the California Open Data Portal will not be updated from June 3 through June 25, 202...
Ground Water - Water Quality Regulatory Information
- Published by: California State Water Resources Control Board
- Last updated: Monday, June 1, 2026
- File types: CSV
GeoTracker is the Water Boards' data management system for sites that impact, or have the potential to impact, water quality in California, with empha...
WDL Ground Surface Displacement - Land Subsidence Monitoring
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 2026
- File types: CSV
Borehole extensometers are a more site specific method of measuring land subsidence. These instruments consist of a pipe or cable anchored at the bott...
Continuous Groundwater Level Measurements
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 2026
- File types: CSV
DWR continuous groundwater level measurements contains continuous time-series data from automated recorders at sites operated by the Department of Wa...
Central Valley Water Board E. coli Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, May 28, 2026
- File types: CSV
Draft - E. coli monitoring results from the Central Valley Regional Water Quality Control Board. _E. coli_ is a type of bacteria used to indicate feca...
DWR Enterprise Monitoring Well Network
- Published by: California Department of Water Resources
- Last updated: Sunday, June 14, 2026
- File types: CSV
The Department of Water Resources (DWR) Enterprise Monitoring Well Network dataset contains information regarding wells monitored by DWR. The wells in...